Home / 40,375.87-60,570.72-13,719.04

Finding the Fourth Proportional to 40,375.87, 60,570.72 and 13,719.04

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Solution

The fourth proportional to 40,375.87, 60,570.72 and 13,719.04 is: 20,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,375.87 : 60,570.72 = 13,719.04 : x
  2. Step 2: Convert to fraction form
    40,375.87/60,570.72 = 13,719.04/x
  3. Step 3: Cross multiply
    40,375.87x = 60,570.72 × 13,719.04
  4. Step 4: Simplify right side
    40,375.87x = 830,971,979.08
  5. Step 5: Solve for x
    x = 830,971,979.08/40,375.87
  6. Step 6: Final answer
    x = 20,580.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.